Electrode connection structure of speaker unit

Abstract

An electrode connection structure of a speaker unit is provided. The speaker unit includes at least one electrode layer, which is made of a conductive material, or made of a non-conductive material with a conductive layer formed on a surface thereof. The electrode connection structure includes a conductive electrode and an adhesive material. The conductive electrode is used for providing power supply signals for the speaker unit to generate sounds. The adhesive material adheres the conductive electrode in parallel with a surface of the electrode layer. The adhesive material has adhesive characteristics, so as to electrically connect the conductive electrode and the electrode layer, in which the adhesive material is adhered to a side of the surface of the electrode layer closely adjacent to the conductive electrode with a certain area.

1. An electrode connection structure of a speaker unit, wherein the speaker unit comprises an electrode with a plurality of openings, a vibrating membrane, and a plurality of supporting bodies disposed between the electrode and the vibrating membrane to form a cavity space as a working region for the vibrating membrane, the vibrating membrane comprising an electret layer and a metal thin film electrode, the electrode connection structure comprising:
 a first conductive electrode and a second conductive electrode, both of which are electrically isolated from each other, for respectively providing sound source signals for the speaker unit to generate sounds; 
 a first adhesive material, adhering the first conductive electrode substantially in parallel on a surface of the electrode with the plurality of openings; and 
 a second adhesive material, adhering the second conductive electrode substantially in parallel on a surface of the metal thin film electrode of the vibrating membrane, 
 wherein the first adhesive material comprises adhesive characteristics, so as to electrically connect the first conductive electrode to the electrode with the plurality of openings, and the first adhesive material is adhered to a side of the surface of the first electrode closely adjacent to the conductive electrode with a first certain elongated area, and 
 wherein the second adhesive material comprises adhesive characteristics, so as to electrically connect the second conductive electrode to the metal thin film electrode of the vibrating membrane, and the second adhesive material is adhered to a side of the surface of the second electrode closely adjacent to the metal thin film electrode of the vibrating membrane with a second certain elongated area. 
 
     
     
       2. The electrode connection structure of a speaker unit according to  claim 1 , wherein the first adhesive material and the second adhesive material are conductive adhesive materials, such that when the sound source signals are transmitted by the first conductive electrode and the second conductive electrode, the sound source signals are respectively and uniformly transmitted to the electrode with the plurality of openings and the metal thin film electrode of the vibrating membrane. 
     
     
       3. The electrode connection structure of a speaker unit according to  claim 1 , wherein the first adhesive material and the second adhesive material are conductive adhesive materials, and the first adhesive material and the second adhesive material are respectively directly disposed on a surface of the first conductive electrode for connecting to the electrode with the plurality of openings and on a surface of the second conductive electrode for connecting to the metal thin film electrode of the vibrating membrane. 
     
     
       4. The electrode connection structure of a speaker unit according to  claim 1 , wherein the first adhesive material and the second adhesive material are conductive adhesive materials, the first adhesive material extends to a whole surface of the first conductive electrode, and the second adhesive material extends to a whole surface of the second conductive electrode. 
     
     
       5. The electrode connection structure of a speaker unit according to  claim 1 , wherein the first adhesive material and the second adhesive material are conductive adhesive materials, wherein the conductive adhesive material is conductive adhesive, anisotropic conductive adhesive, or isotropic conductive adhesive. 
     
     
       6. The electrode connection structure of a speaker unit according to  claim 1 , wherein both of the first conductive electrode and the second conductive electrode are made of a metal or a conductive organic material. 
     
     
       7. The electrode connection structure of a speaker unit according to  claim 1 , wherein a surface of the electrode with the plurality of openings connected to the first conductive electrode comprises an uneven structure, the first adhesive material is a non-conductive adhesive material or an ultraviolet (UV) adhesive, and a protruding part of the uneven structure of the electrode with the plurality of openings is electrically connected to the first conductive electrode by the use of contraction and curing generated from a physical or a chemical action of the first adhesive material. 
     
     
       8. The electrode connection structure of a speaker unit according to  claim 1 , wherein a surface of the first conductive electrode connected to the electrode with the plurality of openings comprises an uneven structure, the first adhesive material is a non-conductive adhesive material, and a protruding part of the uneven structure of the first conductive electrode is electrically connected to the electrode with the plurality of openings by the use of contraction and curing generated from a physical or a chemical action of the adhesive material. 
     
     
       9. The electrode connection structure of a speaker unit according to  claim 1 , wherein connecting surfaces of the electrode with the plurality of openings and the first conductive electrode each comprise an uneven structure, the first adhesive material is a non-conductive adhesive material, and a protruding part of the uneven structure of the electrode with the plurality of openings is electrically connected to a protruding part of the uneven structure of the first conductive electrode by the use of contraction and curing generated from a physical or a chemical action of the adhesive material. 
     
     
       10. The electrode connection structure of a speaker unit according to  claim 1 , further comprising a protection layer, formed on an external side of a conductive electrode package structure formed by the electrode with the plurality of openings, the first conductive electrode, and the first adhesive material, so as to protect the conductive electrode package structure. 
     
     
       11. The electrode connection structure of a speaker unit according to  claim 10 , wherein the protection layer is a protection tape. 
     
     
       12. The electrode connection structure of a speaker unit according to  claim 10 , wherein the protection layer is formed by directly coating a liquid overcoat. 
     
     
       13. The electrode connection structure of a speaker unit according to  claim 1 , wherein the first conductive electrode and the second conductive electrode are strip shaped, sheet shaped, or linear shaped. 
     
     
       14. The electrode connection structure of a speaker unit according to  claim 1 , wherein the electrode with the plurality of openings is made of metal or conductive cloth. 
     
     
       15. The electrode connection structure of a speaker unit according to  claim 14 , wherein the electrode with the plurality of openings is made of iron, copper, aluminum, or alloy thereof. 
     
     
       16. The electrode connection structure of a speaker unit according to  claim 14 , wherein the electrode with the plurality of openings is made of metal fiber, oxide metal fiber, carbon fiber, or graphite fiber. 
     
     
       17. The electrode connection structure of a speaker unit according to  claim 1 , wherein the electrode with the plurality of openings comprises a non-conductive material layer and a conductive thin film. 
     
     
       18. The electrode connection structure of a speaker unit according to  claim 17 , wherein the conductive thin film is formed on a surface of the non-conductive material layer by plating. 
     
     
       19. The electrode connection structure of a speaker unit according to  claim 17 , wherein the non-conductive material layer and the conductive thin film are formed on the electrode layer by laminating. 
     
     
       20. The electrode connection structure of a speaker unit according to  claim 17 , wherein the non-conductive material is made of plastic, rubber, paper, or non-conductive cloth. 
     
     
       21. The electrode connection structure of a speaker unit according to  claim 17 , wherein the conductive thin film is made of a pure metal material such as aluminum, gold, silver, and copper, or an alloy thereof, a bi-metal material, a conductive oxide material such as indium tin oxide (ITO) and indium zinc oxide (IZO), a high molecular conductive material PEDOT, or a combination thereof.